Eogeryon elegius n. gen. and n. sp. (Decapoda: Eubrachyura: Portunoidea), one of the oldest modern crabs from late Cenomanian of the Iberian Peninsula
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| Format: | Artículo científico |
| Language: | en |
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Sociedad Geológica Mexicana, A.C.
2016
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| _version_ | 1876427561601335296 |
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| author | Àlex Ossó |
| author_facet | Àlex Ossó |
| contents | Eogeryon elegius n. gen. and n. sp. (Decapoda: Eubrachyura: Portunoidea), one of the oldest modern crabs from late Cenomanian of the Iberian Peninsula Àlex Ossó Ciencias de la Tierra Spain Resumen Crustacea Brachyura Geryonidae A new Heterotremata (Eubrachyura) decapod from the late Cenomanian of Condemios de Arriba (Guadalajara, Spain) is described. The new taxon has affinities with the basal portunoids and their features suggest placement within the Portunoidea. Comparisons with all the currently known Cretaceous Eubrachyura taxa demonstrates how Eogeryon elegius is an advanced crab in spite of its Cenomanian origins, suggesting that it evolved from ancestors previously unknown according to the current fossil record. As a result of those comparisons, a new family, Eogeryonidae, within Portunoidea, is proposed to accommodate the new genus and species. In addition, Eogeryon elegius is also compared with early Eocene and extant related taxa, with emphasis on the non-swimming portunoid family Geryonidae. Eogeryon elegius appears to be an ancestor of most derived forms of Portunoidea, suggesting that the evolution of Eubrachyura must have occurred at least during the Early Cretaceous. 2016 artículo científico 1405-3322 https://www.redalyc.org/articulo.oa?id=94346152004 https://www.redalyc.org/journal/943/94346152004/ https://www.redalyc.org/journal/943/94346152004/html/ https://www.redalyc.org/journal/943/94346152004/94346152004.epub https://www.redalyc.org/journal/943/94346152004/movil en http://www.redalyc.org/revista.oa?id=943 Boletín de la Sociedad Geológica Mexicana application/pdf Sociedad Geológica Mexicana, A.C. Boletín de la Sociedad Geológica Mexicana (México) Num.2 Vol.68 |
| format | Artículo científico |
| id | redalyc_94346152004 |
| institution | Redalyc |
| language | en |
| publishDate | 2016 |
| publisher | Sociedad Geológica Mexicana, A.C. |
| spellingShingle | Eogeryon elegius n. gen. and n. sp. (Decapoda: Eubrachyura: Portunoidea), one of the oldest modern crabs from late Cenomanian of the Iberian Peninsula Àlex Ossó Ciencias de la Tierra Spain Resumen Crustacea Brachyura Geryonidae Eogeryon elegius n. gen. and n. sp. (Decapoda: Eubrachyura: Portunoidea), one of the oldest modern crabs from late Cenomanian of the Iberian Peninsula Àlex Ossó Ciencias de la Tierra Spain Resumen Crustacea Brachyura Geryonidae A new Heterotremata (Eubrachyura) decapod from the late Cenomanian of Condemios de Arriba (Guadalajara, Spain) is described. The new taxon has affinities with the basal portunoids and their features suggest placement within the Portunoidea. Comparisons with all the currently known Cretaceous Eubrachyura taxa demonstrates how Eogeryon elegius is an advanced crab in spite of its Cenomanian origins, suggesting that it evolved from ancestors previously unknown according to the current fossil record. As a result of those comparisons, a new family, Eogeryonidae, within Portunoidea, is proposed to accommodate the new genus and species. In addition, Eogeryon elegius is also compared with early Eocene and extant related taxa, with emphasis on the non-swimming portunoid family Geryonidae. Eogeryon elegius appears to be an ancestor of most derived forms of Portunoidea, suggesting that the evolution of Eubrachyura must have occurred at least during the Early Cretaceous. 2016 artículo científico 1405-3322 https://www.redalyc.org/articulo.oa?id=94346152004 https://www.redalyc.org/journal/943/94346152004/ https://www.redalyc.org/journal/943/94346152004/html/ https://www.redalyc.org/journal/943/94346152004/94346152004.epub https://www.redalyc.org/journal/943/94346152004/movil en http://www.redalyc.org/revista.oa?id=943 Boletín de la Sociedad Geológica Mexicana application/pdf Sociedad Geológica Mexicana, A.C. Boletín de la Sociedad Geológica Mexicana (México) Num.2 Vol.68 |
| title | Eogeryon elegius n. gen. and n. sp. (Decapoda: Eubrachyura: Portunoidea), one of the oldest modern crabs from late Cenomanian of the Iberian Peninsula |
| topic | Ciencias de la Tierra Spain Resumen Crustacea Brachyura Geryonidae |
| url | https://www.redalyc.org/articulo.oa?id=94346152004 https://www.redalyc.org/journal/943/94346152004/ https://www.redalyc.org/journal/943/94346152004/html/ https://www.redalyc.org/journal/943/94346152004/94346152004.epub https://www.redalyc.org/journal/943/94346152004/movil |